Hi, list members,

I've been using Pd for several years, and till now I've been able to solve my problems by myself or consulting this list, so thanks very much everyone for your help in these years.

But now I've got a problem that I can´t solve, so I´ll appreciate so much your help. I'm working with pix_delay, an object that allows me to move the real time image (with pix_video) between present and past changing dinamically the delay's lenght. I have made several installations with this concept and all them worked well, but I've always desired to expand the delay's lenght (1800 frames at this moment). In my imagination I can see a one year's delay. Even if I understand this is imposible rigth now, I would like to find a way to, at least, expand this limit, but when I increase the number in pix_delay and I create the gem window Pd crashes. 

I assumed this happened for a hardware limit, cause I was working with a not very powerful minimac (2.7 GHz Intel Core i7, 16 GB RAM, and a AMD Radeon HD 6630M 256 MB Graphic Card). But some days ago I bought a brand new Imac (Retina 5K, 27-imch, Mid 2015 with a 3,3 GHz Intel Core i5 processor, 32 GB RAM and a AMD Radeon R9 M290 2048 MB Graphic Card) and I get an almost identical problem,(I arrived to 1850 lenght) so I feel a bit desperate and without a direction to explore. Does anybody knows the reason for this limit, and if it´s possible to expand? It´s an issue related in somehow to the Pd architecture? I´ll appreciate so much your help.

I prefer to work with 0.42.5 Pd extended version, but I've tried with the 0-43.4 version suffering the same problem.

I send you in an attachment the smallest version of the patch, with the resolution I work with (if I increase  the resolution the lenght must be smaller and viceversa). When you load the patch you have to wait a bit more than a minute, so the lenght's delay can be loaded. You can change the number in the right inlet and see the changes.

Thanks a lot in advance!